HydroBASINS lev08 watershed · #7080518750
Bassin de Trinity River
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 2 administrative regions : Humboldt, Trinity
Sub-basin area
80,1km²
Upstream area
4 498,5km²
Discharge
118,89m³/s
Mean elev.
636m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de New River610 km²
- Bassin de Trinity River474 km²
2 dept-equivalent regions (GADM L2)
- Trinity78.5 km²97.8% of basin
- Humboldt1.7 km²2.2% of basin
2 intersecting protected areas
Trinity, California
IUCN VWild and Scenic River
13.61 km² overlap
Trinity, California
IUCN VWild and Scenic River
0.20 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
922 distinct species · 9 125 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Trinity River : 29 espèces reliées par 86 interactions GloBI sur 4 types (connectance 8.7%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
11,4°C
Annual rain
1 251mm
Moisture idx (CMI)
0,03
Runoff
1 024mm/an
PET
1 209mm
AET
644mm
Mean slope
20,6°
Water table
629cm
Forest
100%
Crops
0%
Urban
0%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)